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Message-ID: <202412160756.7tFtCu4g-lkp@intel.com>
Date: Mon, 16 Dec 2024 07:28:52 +0800
From: kernel test robot <lkp@...el.com>
To: David Laight <David.Laight@...lab.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Yury Norov <yury.norov@...il.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Masahiro Yamada <masahiroy@...nel.org>,
'Vincent Mailhol' <mailhol.vincent@...adoo.fr>
Subject: Re: [PATCH next] linux/bits.h: Simplify GENMASK()
Hi David,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.13-rc2]
[cannot apply to next-20241213 next-20241213]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/David-Laight/linux-bits-h-Simplify-GENMASK/20241216-040445
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/8423d75207f64e4081f0019601b4a016%40AcuMS.aculab.com
patch subject: [PATCH next] linux/bits.h: Simplify GENMASK()
config: arm64-randconfig-004-20241216 (https://download.01.org/0day-ci/archive/20241216/202412160756.7tFtCu4g-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241216/202412160756.7tFtCu4g-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412160756.7tFtCu4g-lkp@intel.com/
All errors (new ones prefixed by >>):
>> lib/test_bits.c:46:47: error: use of undeclared identifier '__uint128'
KUNIT_EXPECT_EQ(test, 0x0000000000000001ull, GENMASK_U128(0, 0));
^
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
>> lib/test_bits.c:46:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
>> lib/test_bits.c:46:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
>> lib/test_bits.c:46:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:47:47: error: use of undeclared identifier '__uint128'
KUNIT_EXPECT_EQ(test, 0x0000000000000003ull, GENMASK_U128(1, 0));
^
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:47:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:47:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:47:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:48:47: error: use of undeclared identifier '__uint128'
KUNIT_EXPECT_EQ(test, 0x0000000000000006ull, GENMASK_U128(2, 1));
^
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:48:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:48:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:48:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:49:47: error: use of undeclared identifier '__uint128'
KUNIT_EXPECT_EQ(test, 0x00000000ffffffffull, GENMASK_U128(31, 0));
^
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:49:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:49:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:49:47: error: use of undeclared identifier '__uint128'
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
(GENMASK_INPUT_CHECK(hi, lo) + __GENMASK_U128(hi, lo))
^
include/uapi/linux/bits.h:15:44: note: expanded from macro '__GENMASK_U128'
#define __GENMASK_U128(hi, lo) ___GENMASK((__uint128)1, hi, lo)
^
lib/test_bits.c:50:47: error: use of undeclared identifier '__uint128'
KUNIT_EXPECT_EQ(test, 0x000000ffffe00000ull, GENMASK_U128(39, 21));
^
include/linux/bits.h:33:33: note: expanded from macro 'GENMASK_U128'
vim +/__uint128 +46 lib/test_bits.c
6d511020e13d5d6 Rikard Falkeborn 2020-08-11 41
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 42 static void genmask_u128_test(struct kunit *test)
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 43 {
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 44 #ifdef CONFIG_ARCH_SUPPORTS_INT128
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 45 /* Below 64 bit masks */
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 @46 KUNIT_EXPECT_EQ(test, 0x0000000000000001ull, GENMASK_U128(0, 0));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 47 KUNIT_EXPECT_EQ(test, 0x0000000000000003ull, GENMASK_U128(1, 0));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 48 KUNIT_EXPECT_EQ(test, 0x0000000000000006ull, GENMASK_U128(2, 1));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 49 KUNIT_EXPECT_EQ(test, 0x00000000ffffffffull, GENMASK_U128(31, 0));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 50 KUNIT_EXPECT_EQ(test, 0x000000ffffe00000ull, GENMASK_U128(39, 21));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 51 KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_U128(63, 0));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 52
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 53 /* Above 64 bit masks - only 64 bit portion can be validated once */
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 54 KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_U128(64, 0) >> 1);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 55 KUNIT_EXPECT_EQ(test, 0x00000000ffffffffull, GENMASK_U128(81, 50) >> 50);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 56 KUNIT_EXPECT_EQ(test, 0x0000000000ffffffull, GENMASK_U128(87, 64) >> 64);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 57 KUNIT_EXPECT_EQ(test, 0x0000000000ff0000ull, GENMASK_U128(87, 80) >> 64);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 58
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 59 KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_U128(127, 0) >> 64);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 60 KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, (u64)GENMASK_U128(127, 0));
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 61 KUNIT_EXPECT_EQ(test, 0x0000000000000003ull, GENMASK_U128(127, 126) >> 126);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 62 KUNIT_EXPECT_EQ(test, 0x0000000000000001ull, GENMASK_U128(127, 127) >> 127);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 63 #ifdef TEST_GENMASK_FAILURES
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 64 /* these should fail compilation */
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 65 GENMASK_U128(0, 1);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 66 GENMASK_U128(0, 10);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 67 GENMASK_U128(9, 10);
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 68 #endif /* TEST_GENMASK_FAILURES */
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 69 #endif /* CONFIG_ARCH_SUPPORTS_INT128 */
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 70 }
d7bcc37436c7d37 Anshuman Khandual 2024-08-22 71
--
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